Date: Fri, 24 Aug 2007 08:17:18 -0700 From: Freddie Cash <fjwcash+freebsd@gmail.com> To: stable@freebsd.org Subject: Re: A little story of failed raid5 (3ware 8000 series) Message-ID: <200708240817.19113.fjwcash%2Bfreebsd@gmail.com> In-Reply-To: <00c801c7e631$85e3e700$0701a8c0@claylaptop> References: <MDEHLPKNGKAHNMBLJOLKCENEGEAC.davids@webmaster.com> <20070824095702.6fe7ee3c@mablung.edhellond.fbi.ie> <00c801c7e631$85e3e700$0701a8c0@claylaptop>
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On August 24, 2007 02:31 am Clayton Milos wrote: > > On Tue, 21 Aug 2007 08:57:22 +0400 > > > > "Artem Kuchin" <matrix@itlegion.ru> wrote: > >> Um.. it is because i did not have a map of hot swap baskets to > >> conroller ports and i needed to check every driver basket to > >> understand which port it sits on. I have no choise, i think. > > > > I'm just going to highlight the importance of knowing which > > physical disk is which on your system. > > > > About a year ago I had to replace a hot-swappable disk from an > > array, but then realised I had no idea which physical disk it > > was as the map of the disks was rather helpfully *inside* the > > case. Due to the physical setup, I had no way or removing the > > cover without first powering down the server - which defeated > > the whole point of paying extra for hot-swap disks. > > > > So yeah, be sure to label your disk bays, but be sure to put > > those labels somewhere *useful*. > > > > -fr. > > Useful like on the front of the drive bays ;-) > The Areca cards have a nice function called drive identify that lights > up the selected drive's LED. I think the 3ware cards have it too. That's only useful if the drive LEDs are configured to correctly match the port. :) We've had custom built servers with 4 drive bays arrive with the LEDs either not connected, or connected to different ports on the RAID controller than the drives were on. Very confusing until we started double-checking the connections when the servers arrived. -- Freddie Cash, LPIC-2 CCNT CCLP Network Support Technician School District 73 (250) 377-HELP [377-4357] fjwcash+freebsd@gmail.com
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